Telephone station outdoor protector



Feb. 20, 1934. G W, RQDORMER v 1,948,078

TELEPHONE STATION OUTDOOR PROTECTOR Filed Sept. 5, 1931 2 Sheets-Sheet lFeb. 20, 1934. G wA RQDQRMER 1,948,078

TELEPHONE STATION OUTDOOR PROTECTOR Filed Sept. 5, 1951 2 Sheets-Sheet 2[mW/2f george ZMDocZOffT/:er

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Patentedl Feb. 20, 1934 UNITED STATES PATENT OFFICE TELEPHONE STATIONOUTDOOR PROTECTOR George W. Rodormer, Park Ridge, Ill., assignor toReliable Electric Company, Chicago, Ill., a corporation of Illinois Thisinvention relates to telephone station outdoor protectors.

It is the usual practice to install the station protector in thebasement of the building where the telephone is located. In many cases,however, there is either no basement in which to install the protector,or for some other reason it is desirable to place it on the outside.

It is the purpose of this invention to provide a simple, compact outsideprotector which provides plenty of space and freedom for simple anddirect installation of the wiring and the necessary protectiveequipment.

It is the practice to mount outdoor protectors so that they may bereached from the ground. If trouble occurs on the line, a repairmanmakes tests at the protector, and, if a power line has contacted with atelephone line and blown one or both of the fuses of the protector, insome instances the power might still be on the telephone drop wire. Theline clips of the protector would be alive. It is an important featureof this invention that the cover for the protector is so mounted that itcannot be tilted into contact with the line clips or other live part ofthe protector.

It is also a purpose of this invention to provide a simple base and stanportion of insulating material upon which all of the parts of theprotector may be mounted and the fuse mountings placed in staggeredposition on each side of the staff so as to be fully isolated from eachother to facilitate wiring.

It is also a purpose of this invention to so arrange the parts upon thebase and staff that they are all clear of the wiring and of each otherwith sufficient margin to insure safety and minimize the chance ofcurrent leakage even under extreme moisture conditions in service.

It is a further purpose of the invention to provide an attachment bymeans of which the protector may be readily mounted upon a wall, whichattachment has also means for mounting an insulator such as a split knobor similar device for properly routing the drop wire and taking up theslack therein.

The other and more detailed objects of the invention will appear as thedescription proceeds in connection with the accompanying drawingswherein the preferred form of the invention is shown.

' In the drawings- Fig. 1 is a side View with the cover.l shown insection;

Fig. 2 is a section substantially on the line 2-2 of Fig. l;

Fig. 3 is a section on the line 3-3 of Fig. 2;

Fig. 4 is a section on the line 4-4 of Fig. 2;

Fig. 5 is a fragmentary section on the line 5-5 of Fig. 1; and

Fig. 6 is a detailed view of the combined mounting clip and protectorcarbon spring.

Referring now in detail to the drawings, the main parts of the protectorconsist of the attaching bracket 10, the insulating base 11, the stair12, and the cover 13. The stair l2 extends transversely across the base11 substantially midway between the ends thereof and is provided at itsopposite sides with the ridges 14 and 15 which co-operate withcorresponding grooves at 16 and 17 on the cover to guide the cover whenit is to be placed on or removed from the protector and prevent itstipping so as to come in contact with any of the electrical devicesmounted on the staff.

The fuses 18 and 19 are as shown mounted on suitable mountings such asthe clips 20, 2l, 22, and 23, which clips are secured in place by thewiring terminal bolts 24, 25, 26, and 27. It is to be noted that theheads of bolts 24 and 27 are countersunk into the staff 12 and asuitable insulation material placed over them so that contact cannot bemade therewith on the side. opposite the clips they retain. Thismounting for the terminals and the fuse clips staggers the fuses onopposite sides of the staff so that they are fully separated from eachother and do not intrude upon the wiring space. The line wires come upthrough a suitable opening in the base and connect to the terminals 24and 26. ,The other terminals 25 and 27 may connect to the instrumentwires as at 28 and 29 on the opposite side of the staff from theconnection oi the line wires and these instrument wires pass out throughthe opening 30 in the base. This opening as shown is preferably somewhatlarger than is necessary for two instrument wires and a ground wire buthas a lling indicated at 3l of some readily removable material, such asa wax compound, which may be removed to increase the capacity or" theopening in case more than two instrument wires are to be connected tothe protector. In this way the danger of moisture getting up into theprotector through the opening 30 is mini- Amized.

noted that these protectors are also staggered with respect to eachother so as to align with the mounting clips for the fuses and so thatthe spring supporting elements 34 and 35 may also be held by theterminals 25 and 27. The upper mounting clips have the springs 34 and 35struck out therefrom. (See Fig. 6.) This simplifies the mounting and ismore economicai. These protective devices are of the same general typeas those shown in Patents Nos. 1,435,213 and 1,726,807 issued to W. L.Cook. rIhe protectors or discharge blocks 32 and 33 are connected by asingle ground strip 36 which, it is noted, passes through a slot 37between the two recesses 38 and 39 at the top of the steif 12. A singleground terminal 40 in Fig. 5 then connects the ground wire 41 to theground strip in order to establish a ground connection for bothdischarge blocks. This ground wire as indicated in Fig. 1 passes throughthe opening 42 in the staff l2 so that it is retained out of the way ofany of the other connections and passes out through the opening 30 withthe instrument wire.

In this fashion a very simple and compact protector is provided Withoutsacrificing any of the space requirements necessary for ease in wiringand safety in operation. The protector is preferably mounted by means ofthe bracket 10 upon the wall. The shaft of this bracket is shown best inFigs. 1 and 2. The base portion 3 thereof is cut out as indicated at 44and 45, and the porcelain base 11 has raised portions around theopenings 30 and 30 which receive the instrument wires and the lineWires.

' The free end portion of the portion 43 has a tongue 46 which turns upand fits over a corresponding groove at 47 in the base, which groove isdirectly aligned with the ridge 14 on the staff. A suitable nutindicated at 48 serves as a means of securing the screw bolt 49 whichholds the cover in place.

The bracket l0 is bolted to the base 11 by means of the bolts indicatedat 50. The bracket has below the protector an outwardly offset portion51 which is slotted with a bayonet slot at 52 so as to receive thesecuring member 53 to secure the split insulator clamp 54 in position.This clamp is used to properly route the line wires as indicated in Fig.2 and take up the slack in these wires. The bracket is, of course,secured to the building wall by lag screws or other suitable means.

From the above description, it is believed that the construction andoperation of this device will be clear to those skilled in this art, andthe advantages thereof readily apparent.

Having thus described one specific form of the invention, what isclaimed as new and is desired to be secured by United States LettersPatent is:

1. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having on opposite sides thereof fusemountings, which mountings are staggered so as not to lie directlyopposite each other, said base having provisions for receiving the lineconnections on one side of said staif and the instrument connections onthe other side thereof.

2. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having on opposite sides thereof fusemountings, which mountings are staggered so as not to lie directlyopposite each other, said staff having a ground strip thereon, and apair of high potential protectors mounted on said staff on oppositesides thereof and interposed between said ground strip and saidmountings,

3. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having on opposite sides thereof fusemountings, which mountings are staggered so as not to lie directlyopposite each other, said staff having a ground strip thereon, and highpotential protective means interposed between said strip and mountings,said stair having recesses on opposite sides thereof in which saidprotective means are mounted.

4. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having on opposite sides thereof fusemountings, which mountings are staggered so as not to lie directlyopposite each other, said staff having a ground strip thereon, and highpotential protective means interposed between said strip and mountings,said staff having recesses on opposite sides thereof in which saidprotective means are mounted, said recesses being staggered so as not tolie directly opposite each other.

5. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having on opposite sides thereof fusemountings, which mountings are staggered so as not to lie directlyopposite each other, said staff having a ground strip thereon and highpotential protective means interposed between said strip and mountings,said stair having recesses on opposite sides thereof in which saidprotective means are mounted, said recesses being staggered so as not tolie directly opposite each other, and said recesses being connected by aslot through which said ground strip extends.

6. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staif portionrising from said base and having on opposite sides thereof fusemountings, said staff having a ground strip thereon and high potentialprotective means interposed between said strip and mountings, said staifhaving recesses on opposite sides thereof in which said protective meansare mounted, said recesses being staggered so as not to lie directlyopposite each other.

7. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a stai portionrising from said base and having thereon a plurality of fuse mountingsand wiring terminals connected therewith for receiving line andinstrument connections, and said base being apertured on one side ofsaid staff for the line connections and having an aperture on the otherside thereof for the instrument connections, said last named aperturebeing partially obstructed by a body of readily removable materialwhereby the size thereof may be increased by removal of said material.

8. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having thereon a plurality of fuse mountngsand wiring terminals connected therewith for receiving line andinstrument connections, a supporting bracket secured to said base andhaving an offset portion below said base to receive an insulator on saidportion to which the line connections are secured.

9. An outdoor protective device for telephone and similar systemscomprising an insulating base, mounting means therefor, a staff portionrising from said base and having thereon a plurality of fuse mountingsand wiring terminals connected therewith for receiving line andinstrument connections, said staff having a pair of high potentialprotectors thereon, one on each side thereof, a ground terminal, and asingle ground strip connecting said protectors with said terminal, saidstaff having recesses for said protectors, and a slot between saidrecesses 0 through which said strip passes.

lar systems comprising an insulating base, mounting means therefor, astaff projecting from said base and having fuse mountings for a pair offuses thereon, said mountings being on opposite sides of said staff andstaggered so as not to lie directly opposite each other, a slot in saidstaff and a ground strip mounted in said slot for serving both said fusemountings.

11. A protector device for telephone and similar systems comprising aninsulating base, mounting means therefor, a staff projecting from saidbase and having fuse mountings for a pair of fuses thereon, saidmountings being on opposite sides of said stair and staggered so as notto lie directly opposite each other, a slot in said staff and a groundstrip mounted in said slot, said staff having a high potentialprotective device on each side thereof interposed between the groundstrip and the fuse mountings.

GEORGE. W. RODORMER.

